OBJECTIVES: Characterize longitudinal changes in the use of medical care in adult survivors of childhood cancer. DATA SOURCES: The Childhood Cancer Survivor Study, a retrospective cohort study of 5+ year survivors of childhood cancer. STUDY DESIGN: Medical care was assessed at entry into the cohort (baseline) and at most recent questionnaire completion. Care at each time point was classified as no care, general care, or survivor-focused care. DATA COLLECTION: There were 6,176 eligible survivors. Multivariable models evaluated risk factors for reporting survivor-focused care or general medical care at baseline and no care at follow-up; and survivor-focused care at baseline and general care at follow-up. PRINCIPAL FINDINGS: Males (RR, 2.3; 95 percent CI 1.8-2.9), earning <$20,000/year (RR, 1.6; 95 percent CI 1.2-2.3) or ≤ high school education (RR, 2.5; 95 percent CI 1.6-3.8 and RR 2.0; 95 percent CI 1.5-2.7 for